Sanar International Hospitals

Computer Assisted Navigation for Joint Replacement

A state-of-the-art modality that offers added precision with real time image guidance.

A computer-assisted navigation system is a phenomenal modality that has revolutionized joint replacement by enabling doctors to perform the procedure with added precision and accuracy. The technique has made it possible to eliminate the most common cause of premature joint implant failure, i.e mal-alignment. The results achieved through computer-assisted navigation are far more accurate as compared to conventional joint replacement since human error is completely negated as computer navigation allows real-time, patient-specific information.

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Computer-assisted navigation system comprises 3 main components - A computer platform, a tracking system and a rigid body marker.

Computer platform - It controls the coordination of data taken from the surgical site, interprets it and generates the results on the screen. The computer is specially programmed to assess the 3-D shape and position of the instruments and probe.

Tracking system - This consists of high-definition optical cameras, an electromagnetic coil and an ultrasonic probe. The optical cameras help to pick up infrared light coming from the trackers, which is then recognized by the active emitters

Rigid body marker - The markers or trackers are attached to the bone and can be active or passive. The former emits light from a source and is powered by a battery. The latter reflects infrared light. Different markers are used to trace the movement of the bones and instruments respectively.

Working

The surgery is performed under the influence of anaesthesia and is minimally invasive.
Doctors start by strategically positioning tiny transmitters on the affected leg.
The patient's leg is then moved in certain positions. The alignment of the affected joint in these positions is recorded by the optical camera and the data is transmitted to the computer This data is analyzed and interpreted by the computer and then used to generate an anatomic model of the knee or hip joint.
The information is provided throughout the surgery, thereby enabling real-time assistance while the procedure is being carried out. This helps the surgeons to guide the tools more precisely, allowing accurate bone cuts, positioning of implants and ligament balancing.

The surgery is performed under the influence of anaesthesia and is minimally invasive.
Doctors start by strategically positioning tiny transmitters on the affected leg.
The patient's leg is then moved in certain positions. The alignment of the affected joint in these
positions is recorded by the optical camera and the data is transmitted to the computer This data is analyzed and interpreted by the computer and then used to generate an anatomic model of the knee or hip joint.
The information is provided throughout the surgery, thereby enabling real-time assistance while the procedure is being carried out. This helps the surgeons to guide the tools more precisely, allowing accurate bone cuts, positioning of implants and ligament balancing.

Computer-assisted knee replacement - Also known as computer-assisted total knee arthroplasty, the technique uses infra-red technology for precisely positioning the prosthetics components for replacing damaged knee joints
Computer-assisted hip replacement - Also known as computer-assisted total hip arthroplasty, the technique uses infra-red technology for precisely positioning the prosthetics components for replacing damaged hip joints

Computer-navigated joint replacement is an option for people who are suffering from chronic hip and joint pain that is:

Becoming worse with time
Not responding to any non-surgical treatment
Interfering with the patient's ability to indulge in normal day-to-day activities.

What is Total Knee Replacement?

Total knee replacement is a surgical technique that involves replacing a damaged or arthritic knee joint with an artificial joint known as a prosthesis. The prosthesis is made of metal, high-grade plastics, and polymers and is intended to mimic the natural movement and function of a healthy knee joint. This operation is designed to relieve pain, correct deformities, and restore mobility in people who have suffered from extreme wear and tear in their knee joints as a result of disorders such as osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, or other degenerative joint diseases.

Why Knee Replacement is done?

When conservative treatments such as medication, physical therapy, and lifestyle changes have failed to offer enough relief, knee replacement is advised. Total Knee replacement seeks to relieve pain, improve your daily life, and maintain or strengthen knee function. The following are some common reasons for thinking about total knee replacement surgery:

Severe Pain
Osteoarthritis
Rheumatoid Arthritis
Post-Traumatic Arthritis

Candidates for Knee Replacement

Individuals who are ideal candidates for knee replacement are often those who:

Have chronic knee discomfort that affects their ability to perform everyday activities and has not responded to non-surgical therapy.
Whose knee issues have a major influence on their mobility and overall quality of life, impacting their ability to walk, climb stairs, or engage in ordinary duties.
Whose X-rays and other imaging examinations show significant joint injury, cartilage degradation, or bone abnormalities
Have tried conservative measures such as pain medicines, physical therapy, and assistive gadgets without success.
Have controllable medical issues and no active infections as they are often better suited for knee replacement surgery.

FAQ'S

Q - Is Computer-navigated joint replacement safe?

A - Yes, computer-navigated joint replacement is a completely safe procedure with minimal to no post-surgical complications as it offers added accuracy with zero human error

Q - How long does Computer-navigated joint replacement take?

A - Computer-navigated joint replacement takes around 45 minutes, which is much faster as compared to the traditional joint replacement surgery

Q - How long will it take to recover after Computer-navigated knee replacement?

A - The time taken for recovery following a Computer-navigated knee replacement is around 3 to 4 weeks. In some cases, it may extend up to 6 weeks.

Q - Is computer navigated hip replacement painful?

A - No, computer navigated hip replacement is not a painful procedure as you will be under the influence of anesthesia. Slight discomfort and soreness may be experienced after the surgery which can be easily managed with prescribed pain medication.

Q - For how long will I need to stay in the hospital after computer navigated knee replacement?

A - Patients undergoing computer navigated knee replacement are generally discharged within a day or two, depending on their overall prognosis.

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About Sanar International Hospitals

Sanar International Hospitals is a 150-bedded multispeciality hospital based in the National Capital Region of Delhi in India. Founded in the year 2018, the Hospital offers comprehensive, advanced surgical care in specialities such as Cancer, Heart, Blood and Marrow Transplant, Kidney & Liver Transplant, Bone & Joint and Neurosciences.

A commitment to providing the best healthcare services and patient experiences is at the core of the hospital's mission. With a team of experienced medical experts, state-of-the-art facilities and world-class infrastructure, the hospital has made a mark for itself not only amongst the domestic patients, but also the international patients coming to India for best medical care.

The Hospital follows stringent international practices and believes patient centricity is the cornerstone for providing high-quality care. Riding on years of experience that each surgeon brings to the table and backed by cutting-edge technologies that are at par with the best in the world, Sanar Hospitals is today, reckoned amongst the most well-regarded healthcare providers of the country.

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